Model of the large intestine



Sept. 21 1926.

M. L. PARKER MODEL OF THE. LARGE INTESTINE Filed March 29, 19 26 Inventor Attorney Patented Sept. 21, 1926.

'ivioDnL on THE LARGEINTESTINE: l

Application filed March 29, 1926. Serial No. 98,357.

The present invention pertains to a model of the large intestine,including the rectal end, designed for instruction purposes.

The principal object of the invention is the provision of a device ofthis character which may be used to advantage particularly by teachersof nurses in demonstrating the proper mode of administering enemas. Inthe present practice of making rectal injections, considerable pain isoften caused the patient due to the lack of knowledge on the part of thenurse of the physical phenomena occurring within the intestine. In orderto demonstrate to student nurses the various actions that occur withinthe intestine dur-' ing an injection, I have constructed a glass modelof the large intestine including the rectal end as well. Although glassis the preferred material for the device, any transparent material maybe used.

The lower end of the model is covered by a cap having two apertures. Oneof these apertures receives the injection tube and the other apertureserves as an cape of the air displaced by the enema. The upper end ofthe model may be fitted with a cork so that chemicals or othersubstances may be introduced in the intestine, if desired, in order todemonstrate more accurately the reactions that take place within theintestine.

The invention is fully disclosed in the following description and in theaccompanying drawings in which Figure 1 is an elevation of the devlce;

Figure 2 is a detail section of the rectal end; Figure 3 is a detailsection of the upper end; and

Figure 4 is a plan view of the lower end.

Reference to these views will now be made by use of like characterswhich are employed to designate corresponding parts throughout The modelis formed as a tube 1 of glass or other transparent material havingsubstantially the curvature of the large intestine, including also therectal end 2. The major portion of the tube is formed with a series ofconnected curves 3 to resemble the actual configuration of theintestine. These curves may, however, be omitted and the tube formedperfectly smooth if desired.

The rectal end 2 is open and is covered by a cap 4 preferably of rubber.The cap has a pair of apertures 5 and 6, the former being air vent fores provided to receive the injection tube 7, and the latter serving as avent for the escape of air displaced from the intestine by the enema. f

The upper or inlet end 8 is also open and normally fitted with a stopper9. The stopper is removed when it is desired to deposit in the intestinesubstance resembling the usual contents when itis desired to study theefiect of the enema on the contents of the intestine.

It will be apparent that this modelcon- J stitutes a practical andettective 'devicefor demonstrating, particularly to student nurses,the-actions occurring within the intestine during and as a result of theadministration of enemas. By carefully observing and studying theseactions, the student is enabled to learn the accurate method of makingrectal injections, with the result that much sufiering on the part ofthe patient will be avoided.

While a specific embodiment of the invention has been illustrated anddescribed, it is to be understood that various alterations in thedetails of construction may be made without departing from the spirit ofthe invention as indicated by the appended claims.

Having thus fully described the invention, what I claim as new anddesire to protect by Letters Patent is V 1. A model of the largeintestine, including the rectal end, constructed of transparentmaterial, said end being open, in combination with an injection tube,and means for supporting said tube in said end.

2. A model of the large intestine, including the rectal end, constructedof glass, said end being open, in combination with an injection tube,and means for supporting said tube in said end. I

3. A model of the large intestine, including the rectal end, constructedof transparent material, said end being open and an apertured capapplied over said end.

4:. ing the rectal end, constructed of transparent material, said endbeing open, a cap applied over said end, said caphaving an injectionopening and an air vent. 5. Amodel of the large intestine, including therectal end, constructed of transparent material, both ends being open, astopper forthe upper end, and an apertured cap applied over the rectalend.

A model of the large intestine, includ- 6. A model of the largeintestine, including the rectal end constructed of transparent material,both ends being open, a stopper for the upper end, a cap applied oversaid 5 rectal end, said cap having an injection opening and'an air vent.

7, A model of the large intestine, comprising a bent tube of transparentmaterial, one

of the ends thereof being open, and an apertured cap applied over saidend. W 1 11(11 witness whereof I have hereunto set my ian MARIA LOUISAPARKER.

